Quite funny is the visual impression that the box looks from the outside, like a much too thick more advisable Stabilo marker. Unfortunately, the removed cover is not to be connected to the shell so that it is then always loose. The pins operate as one (s) it is used by this brand - flawlessly. The normal-sized pens are certainly better suited, because of the ergonomic writing position for normal desk operation. Go the four dwarfs find but anywhere and are safe enough for field service activities - where there are needed four different colors, because if one color be sufficient the large pen is also here certainly advantageous. Overall a nice gag, unfortunately the mini-package is a bit more expensive than the same quad-combination in the normal size.